QPQ-AG/gmhive_client
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Ulf Wiger 2025-05-13 23:56:46 +02:00
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.rebar3
.eunit
*.o
*.beam
*.plt
*.swp
*.swo
.erlang.cookie
.directory
ebin/*.beam
log
erl_crash.dump
.rebar
logs
_build
REVISION
VERSION
*.erl~
*.aes~
*.config~
*.args~
data/mnesia
_checkouts*/
tmp/
rebar3.crashdump
eqc-lib
eqc
eunit_report/*.xml
.history
.vscode

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{"src/*", [debug_info, {i, "include/"}, {outdir, "ebin/"}]}.

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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
that uses the facility (other than as an argument passed when the
facility is invoked), then you may convey a copy of the modified
version:
a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
a header file that is part of the Library. You may convey such object
code under terms of your choice, provided that, if the incorporated
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You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
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the following:
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c) For a Combined Work that displays copyright notices during
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these notices, as well as a reference directing the user to the
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d) Do one of the following:
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5. Combined Libraries.
You may place library facilities that are a work based on the
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b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
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applies to it, you have the option of following the terms and
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If the Library as you received it specifies that a proxy can decide
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apply, that proxy's public statement of acceptance of any version is
permanent authorization for you to choose that version for the
Library.

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# Gajumaru Hive Client
When running tests locally:
`rebar3 shell`
If connecting to the `testnet` hive:
`GMMP_CLIENT_CONFIG=gmhc_config-testnet.eterm rebar3 shell`
If connecting to a `testnet` hive running locally:
`GMHC_CONFIG=gmhc_config-testnet-local.eterm rebar3 shell`

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%% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
[
{ kernel,
[
{inet_dist_use_interface, {127,0,0,1}},
{logger_level, all},
{logger,
[ {handler, default, logger_std_h,
#{
formatter =>
{logger_formatter, #{ legacy_header => false
, single_line => true
, template => [ "[", time, "] "
, mfa, ":", line, " "
, pid, " "
, "[", level, "] "
, msg, "\n"]
}}
}}
]}
]},
{ setup, [
{data_dir, "$HOME/data"},
{log_dir, "$HOME/log"}
]}
].

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-sname gmhc@localhost
-setcookie gmhc_cookie
# This setting should not be changed, since this will not do any harm if the
# system doesn't support kernel polling.
+K true

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{application,gmhive_client,
[{description,"Gajumaru Hive client"},
{vsn,"0.1.0"},
{registered,[]},
{applications,[kernel,stdlib,sasl,gproc,enoise,gmconfig,
gmhive_protocol,gmhive_worker]},
{mod,{gmhive_client,[]}},
{start_phases,[{connect_to_primary,[]}]},
{env,[]},
{modules,[base58,eblake2,eblake2_tests,timing,enacl_eqc,
enacl_ext_eqc,enacl,enacl_ext,enacl_nif,enacl_SUITE,
enoise,enoise_cipher_state,enoise_connection,
enoise_crypto,enoise_hs_state,enoise_keypair,
enoise_protocol,enoise_sym_state,
enoise_bad_data_tests,enoise_chiper_state_tests,
enoise_crypto_tests,enoise_hs_state_tests,
enoise_protocol_tests,enoise_sym_state_tests,
enoise_tests,enoise_utils,test_utils,gmconfig,
gmconfig_schema_helpers,gmconfig_schema_utils,
gmcuckoo,gmhc_app,gmhc_config,gmhc_config_schema,
gmhc_connector,gmhc_connectors_sup,gmhc_counters,
gmhc_eureka,gmhc_events,gmhc_handler,gmhc_server,
gmhc_sup,gmhc_workers,gmhive_client,gmhp_msgs,
gmhw_blake2b_256,gmhw_pow,gmhw_pow_cuckoo,
gmhw_siphash24,gmcuckoo_SUITE,gmhw_pow_cuckoo_tests,
gmhw_pow_tests,gmser_api_encoder,gmser_chain_objects,
gmser_contract_code,gmser_delegation,gmser_dyn,
gmser_id,gmser_rlp,gmserialization,
gmser_api_encoder_tests,gmser_chain_objects_tests,
gmser_contract_code_tests,gmser_delegation_tests,
gmser_rlp_tests,gproc,gproc_app,gproc_bcast,
gproc_dist,gproc_info,gproc_init,gproc_lib,
gproc_monitor,gproc_pool,gproc_ps,gproc_pt,gproc_sup,
setup,setup_app,setup_file,setup_file_io_server,
setup_gen,setup_lib,setup_srv,setup_sup,setup_zomp,
testapp_app,testapp_sup,testapp_app,testapp_sup,
hex_api,hex_api_auth,hex_api_key,hex_api_organization,
hex_api_organization_member,hex_api_package,
hex_api_package_owner,hex_api_release,hex_api_user,
hex_core,hex_erl_tar,hex_filename,hex_http,
hex_http_httpc,hex_licenses,hex_pb_names,
hex_pb_package,hex_pb_signed,hex_pb_versions,
hex_registry,hex_repo,hex_tarball,safe_erl_term,pc,
pc_compilation,pc_port_env,pc_port_specs,pc_prv_clean,
pc_prv_compile,pc_util,rebar3_hex,rebar3_hex_app,
rebar3_hex_build,rebar3_hex_client,rebar3_hex_config,
rebar3_hex_cut,rebar3_hex_error,rebar3_hex_file,
rebar3_hex_httpc_adapter,rebar3_hex_io,rebar3_hex_key,
rebar3_hex_organization,rebar3_hex_owner,
rebar3_hex_publish,rebar3_hex_results,
rebar3_hex_retire,rebar3_hex_search,rebar3_hex_user,
rebar3_hex_version,
rebar_aecuckooprebuilt_app_with_priv_from_git_resource,
rebar_aecuckooprebuilt_dep,verl,verl_parser,base58,
eblake2,eblake2_tests,timing,enacl_eqc,enacl_ext_eqc,
enacl,enacl_ext,enacl_nif,enacl_SUITE,enoise,
enoise_cipher_state,enoise_connection,enoise_crypto,
enoise_hs_state,enoise_keypair,enoise_protocol,
enoise_sym_state,enoise_bad_data_tests,
enoise_chiper_state_tests,enoise_crypto_tests,
enoise_hs_state_tests,enoise_protocol_tests,
enoise_sym_state_tests,enoise_tests,enoise_utils,
test_utils,gmconfig,gmconfig_schema_helpers,
gmconfig_schema_utils,gmcuckoo,gmhp_msgs,
gmhw_blake2b_256,gmhw_pow,gmhw_pow_cuckoo,
gmhw_siphash24,gmcuckoo_SUITE,gmhw_pow_cuckoo_tests,
gmhw_pow_tests,gmser_api_encoder,gmser_chain_objects,
gmser_contract_code,gmser_delegation,gmser_dyn,
gmser_id,gmser_rlp,gmserialization,
gmser_api_encoder_tests,gmser_chain_objects_tests,
gmser_contract_code_tests,gmser_delegation_tests,
gmser_rlp_tests,gproc,gproc_app,gproc_bcast,
gproc_dist,gproc_info,gproc_init,gproc_lib,
gproc_monitor,gproc_pool,gproc_ps,gproc_pt,gproc_sup,
setup,setup_app,setup_file,setup_file_io_server,
setup_gen,setup_lib,setup_srv,setup_sup,setup_zomp,
testapp_app,testapp_sup,testapp_app,testapp_sup,
hex_api,hex_api_auth,hex_api_key,hex_api_organization,
hex_api_organization_member,hex_api_package,
hex_api_package_owner,hex_api_release,hex_api_user,
hex_core,hex_erl_tar,hex_filename,hex_http,
hex_http_httpc,hex_licenses,hex_pb_names,
hex_pb_package,hex_pb_signed,hex_pb_versions,
hex_registry,hex_repo,hex_tarball,safe_erl_term,pc,
pc_compilation,pc_port_env,pc_port_specs,pc_prv_clean,
pc_prv_compile,pc_util,rebar3_hex,rebar3_hex_app,
rebar3_hex_build,rebar3_hex_client,rebar3_hex_config,
rebar3_hex_cut,rebar3_hex_error,rebar3_hex_file,
rebar3_hex_httpc_adapter,rebar3_hex_io,rebar3_hex_key,
rebar3_hex_organization,rebar3_hex_owner,
rebar3_hex_publish,rebar3_hex_results,
rebar3_hex_retire,rebar3_hex_search,rebar3_hex_user,
rebar3_hex_version,
rebar_aecuckooprebuilt_app_with_priv_from_git_resource,
rebar_aecuckooprebuilt_dep,verl,verl_parser,gmhc_app,
gmhc_config,gmhc_config_schema,gmhc_connector,
gmhc_connectors_sup,gmhc_counters,gmhc_eureka,
gmhc_events,gmhc_handler,gmhc_server,gmhc_sup,
gmhc_workers,gmhive_client]},
{maintainers,["QPQ IaaS AG"]},
{licensens,["ISC"]},
{links,[{"gitea","https://git.qpq.swiss/gmhive_client"}]}]}.

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#{ pubkey => <<"ak_zjyvDmMbXafMADYrxDs4uMiYM5zEVJBqWgv619NUQ37Gkwt7z">>
, pool_admin => #{url => <<"local">>}
, pool => #{id => <<"ct_26xqeE3YKmZV8jrks57JSgZRCHSuG4RGzpnvdz6AAiSSTVbJRM">>,
host => <<"127.0.0.1">>}
, mining =>
[#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
]
}.

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#{ pubkey => <<"ak_zjyvDmMbXafMADYrxDs4uMiYM5zEVJBqWgv619NUQ37Gkwt7z">>
, pool => #{id => <<"ct_26xqeE3YKmZV8jrks57JSgZRCHSuG4RGzpnvdz6AAiSSTVbJRM">>,
host => <<"62.171.150.201">>}
, mining =>
[#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
,#{executable => <<"mean15-generic">>}
]
}.

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#{ pubkey => <<"ak_2KAcA2Pp1nrR8Wkt3FtCkReGzAi8vJ9Snxa4PcmrthVx8AhPe8">>
, pool => #{id => <<"ct_LRbi65kmLtE7YMkG6mvG5TxAXTsPJDZjAtsPuaXtRyPA7gnfJ">>}
, mining =>
[#{executable => <<"mean15-generic">>}]
}.

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%% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
{minimum_otp_vsn, "27.1"}.
{erl_opts, [debug_info]}.
{plugins, [rebar3_hex]}.
{deps, [
{enoise, {git, "https://git.qpq.swiss/QPQ-AG/enoise.git", {ref, "029292817e"}}},
{gmhive_protocol,
{git, "https://git.qpq.swiss/QPQ-AG/gmhive_protocol.git",
{ref, "ea549141f5"}}},
{gmhive_worker, {git, "https://git.qpq.swiss/QPQ-AG/gmhive_worker", {ref, "02ab56dec4"}}},
{gmconfig, {git, "https://git.qpq.swiss/QPQ-AG/gmconfig.git",
{ref, "32c1ed5c4b"}}},
{gproc, "1.0.0"},
{setup, {git, "https://github.com/uwiger/setup", {ref, "3ad83ed"}}}
]}.
{post_hooks, [{compile, "./zompify.sh"}]}.
{relx, [
{release, { gmhive_client, "0.1.0" },
[sasl, enacl, enoise, gmhive_worker,
{gmhive_protocol, load}, gmserialization, gproc, gmconfig, gmhive_client ]},
{dev_mode, true},
{sys_config, "./config/sys.config"},
{vm_args, "./config/vm.args"},
{include_erts, false},
{generate_start_script, true}
]}.
{xref_checks, [undefined_function_calls, undefined_functions,
locals_not_used,
deprecated_function_calls, deprecated_functions]}.
{dialyzer, [ {warnings, [unknown]}
, {plt_apps, all_deps}
, {base_plt_apps, [erts, kernel, stdlib]}
]}.

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{"1.2.0",
[{<<"aecuckooprebuilt">>,
{aecuckooprebuilt_app_with_priv_from_git,
{git,"https://github.com/aeternity/cuckoo-prebuilt.git",
{ref,"90afb699dc9cc41d033a7c8551179d32b3bd569d"}}},
1},
{<<"base58">>,
{git,"https://git.qpq.swiss/QPQ-AG/erl-base58.git",
{ref,"e6aa62eeae3d4388311401f06e4b939bf4e94b9c"}},
2},
{<<"eblake2">>,
{git,"https://git.qpq.swiss/QPQ-AG/eblake2.git",
{ref,"b29d585b8760746142014884007eb8441a3b6a14"}},
1},
{<<"enacl">>,
{git,"https://git.qpq.swiss/QPQ-AG/enacl.git",
{ref,"4eb7ec70084ba7c87b1af8797c4c4e90c84f95a2"}},
2},
{<<"enoise">>,
{git,"https://git.qpq.swiss/QPQ-AG/enoise.git",
{ref,"029292817ea1c685b6377bfae667976c0f4a36bc"}},
0},
{<<"gmconfig">>,
{git,"https://git.qpq.swiss/QPQ-AG/gmconfig.git",
{ref,"32c1ed5c4bc0913adc175fb18b1c9251acc7b606"}},
0},
{<<"gmcuckoo">>,
{git,"https://git.qpq.swiss/QPQ-AG/gmcuckoo.git",
{ref,"9f3aef96d8660e83ef8b5a7ee64908060a8c6572"}},
1},
{<<"gmhive_protocol">>,
{git,"https://git.qpq.swiss/QPQ-AG/gmhive_protocol.git",
{ref,"ea549141f5943b2b1b109a2653b8cd60778107c7"}},
0},
{<<"gmhive_worker">>,
{git,"https://git.qpq.swiss/QPQ-AG/gmhive_worker",
{ref,"02ab56dec4b50947afc118712c96e8c7b9f6b3fe"}},
0},
{<<"gmserialization">>,
{git,"https://git.qpq.swiss/QPQ-AG/gmserialization.git",
{ref,"0288719ae15814f3a53114c657502a24376bebfa"}},
1},
{<<"gproc">>,{pkg,<<"gproc">>,<<"1.0.0">>},0},
{<<"setup">>,
{git,"https://github.com/uwiger/setup",
{ref,"3ad83ed3cade6780897d11f5f0d987012b93345b"}},
0}]}.
[
{pkg_hash,[
{<<"gproc">>, <<"AA9EC57F6C9FF065B16D96924168D7C7157CD1FD457680EFE4B1274F456FA500">>}]},
{pkg_hash_ext,[
{<<"gproc">>, <<"109F253C2787DE8A371A51179D4973230CBEC6239EE673FA12216A5CE7E4F902">>}]}
].

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%% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
-module(gmhc_app).
-behaviour(application).
-export([ start/1 ]).
-export([ start/2
, start_phase/3
, prep_stop/1
, stop/1
]).
-include_lib("kernel/include/logger.hrl").
-spec start([{atom(), any()}]) -> {ok, [atom()]} | {error, any()}.
start(Opts) ->
application:load(gmmp_client),
{error,_} = application:stop(gmmp_client),
_ = lists:foreach(fun({K, V}) ->
application:set_env(gmmp_client, K, V)
end, Opts),
application:ensure_all_started(gmmp_client).
start(_StartType, _StartArgs) ->
set_things_up(),
gmhc_sup:start_link().
start_phase(connect_to_primary, _StartType, []) ->
case application:get_env(gmmp_client, auto_connect, true) of
true ->
gmhc_connectors_sup:start_first_connector();
false ->
skip
end,
ok;
start_phase(_Phase, _StartType, _PhaseArgs) ->
ok.
prep_stop(_State) ->
ok.
stop(_State) ->
ok.
set_things_up() ->
gmhc_counters:initialize(),
gmhc_config:load_config(),
logger:set_module_level([gmhw_pow_cuckoo], notice),
?LOG_DEBUG("Config: ~p", [gmconfig:user_config()]),
ok.

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-module(gmhc_config).
-export([ load_config/0
, get_config/1
, verify_cfg_props/1
]).
-include_lib("kernel/include/logger.hrl").
load_config() ->
instrument_gmconfig(),
?LOG_DEBUG("Schema: ~p", [gmconfig:schema()]),
gmconfig:load_user_config(report),
gmconfig:apply_os_env(),
gmconfig:process_plain_args(),
ok.
instrument_gmconfig() ->
gmconfig:set_gmconfig_env(gmconfig_env()).
-spec gmconfig_env() -> gmconfig:gmconfig().
gmconfig_env() ->
#{ os_env_prefix => "GMHC"
, config_file_basename => "gmhive_client_config"
, config_file_os_env => "GMHIVE_CLIENT_CONFIG"
, config_file_search_path => [".", fun setup:home/0, fun setup:data_dir/0 ]
, config_plain_args => "-gmhc"
, system_suffix => ""
, schema => fun gmhc_config_schema:to_json/0 }.
get_config(Path) ->
gmconfig:get_config(Path, cpath(Path)).
cpath([<<"pubkey">>]) -> [user_config, env(pubkey ) ];
cpath([<<"extra_pubkeys">>]) -> [user_config, env(extra_pubkeys ), schema_default];
cpath([<<"pool_admin">>, <<"url">>]) -> [user_config, env(pool_admin_url), schema_default];
cpath([<<"workers">>]) -> [user_config, env(workers ), schema_default];
cpath(_) -> [user_config, schema_default].
env2cpath(pubkey ) -> [<<"pubkey">>];
env2cpath(extra_pubkeys ) -> [<<"extra_pubkeys">>];
env2cpath(pool_admin_url) -> [<<"pool_admin">>, <<"url">>];
env2cpath(workers ) -> [<<"workers">>].
verify_cfg_props(PropList) ->
Cfg = lists:foldl(
fun({K,V}, M) ->
CfgK = env2cpath(K),
gmconfig:merge_config_maps(M, to_cfg_map(CfgK, V))
end, #{}, PropList),
case gmconfig_schema_utils:valid(Cfg) of
Ok when is_map(Ok) ->
ok;
Other ->
error({invalid_config, Other})
end.
to_cfg_map(K, V) ->
to_cfg_map(K, V, #{}).
to_cfg_map([H], V, M) ->
M#{H => V};
to_cfg_map([H|T], V, M) ->
M#{H => to_cfg_map(T, V, M)}.
env(K) ->
{env, gmhive_client, K}.

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-module(gmhc_config_schema).
-export([ schema/0
, to_json/0 ]).
-import(gmconfig_schema_helpers,
[ str/1
, str/2
, pos_int/2
, int/2
, bool/2
, obj/1
, obj/2
, array/2
, schema_init/0
]).
-define(ACCOUNT_PATTERN, <<"^ak_[1-9A-HJ-NP-Za-km-z]*$">>).
-define(CONTRACT_PATTERN, <<"^ct_[1-9A-HJ-NP-Za-km-z]*$">>).
to_json() ->
json:encode(schema()).
schema() ->
obj(schema_init(),
#{
pubkey => str(#{pattern => ?ACCOUNT_PATTERN},
<<"Primary client pubkey">>)
, extra_pubkeys => array(#{ description =>
<<"Additional miner pubkeys, sharing rewards">>
, default => []
},
str(#{pattern => ?ACCOUNT_PATTERN}))
, type => str(#{ enum => [<<"miner">>, <<"monitor">>]
, default => <<"miner">>
, description => <<"monitor mode can be used to see if a pool is alive">>})
, pool => pool()
, pool_admin => pool_admin()
, workers => workers()
}).
pool() ->
obj(#{
id => str(#{ pattern => ?CONTRACT_PATTERN},
<<"Pool contract id">>),
host => str(#{ default => <<"127.0.0.1">>
, example => <<"0.0.0.0">>
, description => <<"Hostname of hive server">> })
, port => pos_int(17888, <<"Hive server listen port">>)
}).
pool_admin() ->
obj(#{
url => str(#{ default => <<"https://test.gajumining.com/api/workers/{CLIENT_ID}">>
, description => <<"URL of Eureka worker api">> })
}).
workers() ->
array(
#{default => [#{executable => <<"mean29-generic">>}],
description =>
<<"Definitions of workers' configurations. If no worker are configured one worker "
"is used as default, i.e. 'mean29-generic' executable without any extra args.">>},
obj(#{required => [<<"executable">>]},
#{executable =>
str(#{default => <<"mean29-generic">>,
description =>
<<"Executable binary of the worker. Options are: \"mean29-generic\""
" (memory-intensive), "
"\"mean29-avx2\" (memory-intensive, benefits from faster CPU supporting"
" AVX2 instructions), "
"\"lean29-generic\" (CPU-intensive, useful if memory-constrained), "
"\"lean29-avx2\" (CPU-intensive, useful if memory-constrained, benefits "
"from faster CPU supporting AVX2 instructions).">>}),
executable_group =>
str(#{description => <<"Group of executable binaries of the worker.">>,
enum => [ <<"aecuckoo">>, <<"aecuckooprebuilt">>, <<"gmcuckkoo">>, <<"cuda">>, <<"gajumine">> ],
default => <<"aecuckoo">>}),
extra_args =>
str(#{description => <<"Extra arguments to pass to the worker executable binary. "
"The safest choice is specifying no arguments i.e. empty string.">>,
default => <<>>}),
hex_encoded_header =>
bool(false, <<"Hexadecimal encode the header argument that is send to the worker executable. "
"CUDA executables expect hex encoded header.">>),
repeats =>
int(1, <<"Number of tries to do in each worker context - "
"WARNING: it should be set so the worker process "
"runs for 3-5s or else the node risk missing out on new micro blocks.">>),
instances =>
array(#{description =>
<<"Instances used by the worker in case of Multi-GPU mining. "
"Numbers on the configuration list represent GPU devices that are to "
"be addressed by the worker.">>,
minItems => 1,
example => [0,1,2,3]},
#{type => <<"integer">>})
})).

468
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-module(gmhc_connector).
-behaviour(gen_server).
-export([ start_link/1
, init/1
, handle_call/3
, handle_cast/2
, handle_info/2
, terminate/2
, code_change/3
]).
-export([
connect/1
, disconnect/1
, status/0
, status/1
, send/2
]).
-export([ whereis_id/1 ]).
%% for outcoing messages
%% -export([ solution/3
%% , no_solution/2
%% , nonces/2
%% ]).
-include_lib("kernel/include/logger.hrl").
-define(MAX_RETRY_INTERVAL, 30000).
-type retry_opts() :: #{ deadline => pos_integer() }.
-type timer_ref() :: {reference(), non_neg_integer(), non_neg_integer(), retry_opts()}.
-type id() :: non_neg_integer().
-type connect_opts() :: #{ host => string()
, port => pos_integer()
, timeout => pos_integer() %% overrides deadline
, deadline => pos_integer() %% ms monotonic must be in the future
, nowait => boolean() %% default: false
, tcp_opts => list()
, enoise_opts => list() %% if present, MUST contain {'noise', _}
, tcp_opts => list()
, connect_timeout => pos_integer()
}.
-export_type([ id/0
, connect_opts/0 ]).
-record(st, {
id :: non_neg_integer()
, auto_connect = true :: boolean()
, econn
, reconnect_timer :: timer_ref() | 'undefined'
, awaiting_connect = [] :: list()
, protocol :: binary() | 'undefined'
, version :: binary() | 'undefined'
, opts = #{} :: map()
}).
-spec connect(connect_opts()) -> ok | {error, any()}.
connect(Opts) when is_map(Opts) ->
{Timeout, Opts1} = manual_connect_timeout(Opts),
gen_server:call(?MODULE, {connect, Opts1}, Timeout).
manual_connect_timeout(#{timeout := T} = Opts) ->
Deadline = erlang:monotonic_time(millisecond) + T,
{T, maps:remove(timeout, Opts#{deadline => Deadline})};
manual_connect_timeout(#{deadline := D} = Opts) ->
Timeout = D - erlang:monotonic_time(millisecond),
if Timeout < 0 ->
error(invalid_deadline);
true ->
{Timeout, Opts}
end;
manual_connect_timeout(Opts) ->
DefaultT = 10000,
Deadline = erlang:monotonic_time(millisecond) + DefaultT,
{DefaultT, Opts#{deadline => Deadline}}.
disconnect(Id) ->
gen_server:call(via(Id), disconnect).
send(Via, Msg) ->
gen_server:cast(via(Via), {send, Msg}).
status() ->
{via, gproc, HeadPat} = via('$1'),
Connectors = gproc:select([{{HeadPat,'_','_'}, [], ['$1']}]),
[{Id, status_(via(Id))} || Id <- Connectors].
status(Id) ->
{via, gproc, Req} = via(Id),
case gproc:where(Req) of
undefined ->
disconnected;
Pid when is_pid(Pid) ->
status_(Pid)
end.
status_(Proc) ->
try gen_server:call(Proc, status)
catch
error:_ ->
disconnected
end.
%% start_link() ->
%% start_link(#{}).
whereis_id(Id) ->
gproc:where(reg(Id)).
reg(Id) ->
{n, l, {?MODULE, Id}}.
via(Id) ->
{via, gproc, reg(Id)}.
start_link(#{id := Id} = Opts) ->
gen_server:start_link(via(Id), ?MODULE, Opts, []).
init(#{id := Id} = Opts) when is_map(Opts) ->
AutoConnect = opt_autoconnect(Opts),
S0 = #st{id = Id, auto_connect = AutoConnect},
Nowait = maps:get(nowait, Opts, false),
if Nowait ->
proc_lib:init_ack({ok, self()});
true ->
ok
end,
S1 =
case AutoConnect of
true ->
case try_connect(Opts, S0) of
{ok, S} ->
?LOG_DEBUG("Initial connect succeeded", []),
S;
{error, _} = Error ->
?LOG_WARNING("Could not connect to core server: ~p", [Error]),
start_reconnect_timer(S0#st{econn = undefined})
end;
false ->
S0
end,
if Nowait ->
gen_server:enter_loop(?MODULE, [], S1, via(Id));
true ->
{ok, S1}
end.
handle_call(status, _From, #st{econn = EConn} = S) ->
Status = case EConn of
undefined -> disconnected;
_ -> connected
end,
{reply, Status, S};
handle_call({connect, Opts}, From, #st{awaiting_connect = Waiters} = S) ->
Nowait = maps:get(nowait, Opts, false),
case Nowait of
true -> gen_server:reply(From, ok);
false -> ok
end,
case try_connect(Opts, S) of
{ok, S1} ->
if Nowait -> {noreply, S1};
true -> {reply, ok, S1}
end;
{error, _} = Error ->
case maps:get(retry, Opts, true) of
true ->
Waiters1 = if Nowait -> Waiters;
true -> [{From, retry_opts(Opts)}|Waiters]
end,
S1 = start_reconnect_timer(
S#st{ auto_connect = true
, awaiting_connect = Waiters1 }, Opts),
{noreply, S1};
false ->
if Nowait -> {noreply, S};
true -> {reply, Error, S}
end
end
end;
handle_call(disconnect, _From, #st{econn = EConn} = S) ->
case EConn of
undefined ->
ok;
_ ->
enoise:close(EConn)
end,
S1 = cancel_reconnect_timer(S#st{ auto_connect = false
, econn = undefined }),
{reply, ok, S1};
handle_call(_Req, _From, S) ->
{reply, {error, unknown_call}, S}.
handle_cast({send, Msg0}, #st{ econn = EConn
, protocol = P
, version = V } = S) when EConn =/= undefined ->
try
Msg = maps:remove(via, Msg0),
Data = gmhp_msgs:encode(Msg, P, V),
enoise:send(EConn, Data)
catch
error:E:T ->
?LOG_ERROR("CAUGHT error:~p / ~p", [E, T])
end,
{noreply, S};
handle_cast(_Msg, S) ->
{noreply, S}.
handle_info({noise, EConn, Data}, #st{ id = Id
, econn = EConn
, protocol = P, version = V} = S) ->
try gmhp_msgs:decode(Data, P, V) of
Msg ->
gmhc_handler:from_pool(Msg#{via => Id})
catch
error:E ->
?LOG_WARNING("Unknown message (~p): ~p", [E, Data])
end,
{noreply, S};
handle_info({timeout, TRef, {reconnect, Opts}}, #st{ reconnect_timer = {TRef, _, _, _}
, auto_connect = true } = S) ->
case try_connect(Opts, S) of
{ok, S1} ->
?LOG_DEBUG("protocol connected", []),
{noreply, S1};
{error, _} = Error ->
?LOG_DEBUG("Reconnect attempt failed: ~p", [Error]),
{noreply, restart_reconnect_timer(S)}
end;
handle_info({tcp_closed, _Port}, #st{} = S) ->
?LOG_DEBUG("got tcp_closed", []),
disconnected(S#st.id),
S1 = case S#st.auto_connect of
true -> start_reconnect_timer(S#st{econn = undefined});
false -> S#st{econn = undefined}
end,
{noreply, S1};
handle_info(Msg, S) ->
?LOG_DEBUG("Discarding msg (auto_connect=~p): ~p", [S#st.auto_connect, Msg]),
{noreply, S}.
terminate(_Reason, _S) ->
ok.
code_change(_FromVsn, S, _Extra) ->
{ok, S}.
%% try_connect() ->
%% try_connect(#{}, #st{}).
%% try_connect(#st{} = S) ->
%% try_connect(#{}, S).
try_connect(Opts, S) ->
try try_connect_(Opts, S)
catch
error:E:T ->
?LOG_ERROR("Unexpected error connecting: ~p / ~p", [E, T]),
{error, E}
end.
try_connect_(Opts0, S) ->
case eureka_get_host_port() of
{error, _} = Error ->
Error;
PoolOpts when is_map(PoolOpts) ->
case try_noise_connect(maps:merge(Opts0, PoolOpts)) of
{ok, EConn, Opts1} ->
S1 = protocol_connect(Opts1, S#st{ econn = EConn
, reconnect_timer = undefined }),
{ok, S1};
{error, _} = Error ->
Error
end
end.
eureka_get_host_port() ->
case gmhc_eureka:get_pool_address() of
#{<<"address">> := Host,
<<"port">> := Port,
<<"pool_id">> := PoolId} ->
#{host => binary_to_list(Host),
port => Port,
pool_id => binary_to_list(PoolId)};
{error, _} = Error ->
Error
end.
try_noise_connect(Opts) ->
Host = binary_to_list(gmhc_config:get_config([<<"pool">>, <<"host">>])),
Port = gmhc_config:get_config([<<"pool">>, <<"port">>]),
noise_connect(maps:merge(#{host => Host, port => Port}, Opts)).
noise_connect(#{host := Host, port := Port} = Opts) ->
TcpOpts = maps:get(tcp_opts, Opts, default_tcp_opts()),
Timeout = maps:get(connect_timeout, Opts, 5000),
?LOG_DEBUG("TCP connect: Host=~p, Port=~p, Timeout=~p, Opts=~p",
[Host,Port,Timeout,TcpOpts]),
case gen_tcp:connect(Host, Port, TcpOpts, Timeout) of
{ok, TcpSock} ->
?LOG_DEBUG("Connected, TcpSock = ~p", [TcpSock]),
EnoiseOpts = maps:get(enoise_opts, Opts, enoise_opts()),
case enoise:connect(TcpSock, EnoiseOpts) of
{ok, EConn, _FinalSt} ->
{ok, EConn, Opts#{ tcp_opts => TcpOpts
, timeout => Timeout
, enoise_opts => EnoiseOpts }};
{error, _} = Err ->
Err
end;
{error, _} = TcpErr ->
?LOG_DEBUG("TCP connection failed: ~p", [TcpErr]),
TcpErr
end.
default_tcp_opts() ->
[ {active, true}
, {reuseaddr, true}
, {mode, binary}
].
enoise_opts() ->
[{noise, <<"Noise_NN_25519_ChaChaPoly_BLAKE2b">>}].
start_reconnect_timer(#st{} = S) ->
start_reconnect_timer(S, #{}).
start_reconnect_timer(#st{} = S, Opts) ->
case deadline_reached(Opts) of
{true, D} ->
?LOG_DEBUG("timer deadline reached, not restarting timer", []),
notify_deadline(D, S#st{reconnect_timer = undefined});
false ->
?LOG_DEBUG("starting reconnect timer ...", []),
TRef = start_timer(1000, Opts),
S#st{reconnect_timer = {TRef, 10, 1000, Opts}}
end.
restart_reconnect_timer(#st{reconnect_timer = {_, 0, T, Opts}} = S) ->
NewT = max(T * 2, ?MAX_RETRY_INTERVAL),
TRef = start_timer(NewT, Opts),
S#st{reconnect_timer = {TRef, 10, NewT, Opts}};
restart_reconnect_timer(#st{reconnect_timer = {_, N, T, Opts}} = S) ->
TRef = start_timer(T, Opts),
S#st{reconnect_timer = {TRef, N-1, T, Opts}}.
deadline_reached(#{deadline := D}) ->
case erlang:monotonic_time(millisecond) > D of
true -> {true, D};
false -> false
end;
deadline_reached(_) ->
false.
notify_deadline(D, #st{awaiting_connect = Waiters} = S) ->
Waiters1 =
lists:foldr(fun({From, D1}, Acc) when D1 == D ->
gen_server:reply(From, {error, timeout}),
Acc;
(Other, Acc) ->
[Other | Acc]
end, [], Waiters),
S#st{awaiting_connect = Waiters1}.
notify_connected(#st{id = Id, awaiting_connect = Waiters} = S) ->
gmhc_events:publish(connected, #{id => Id}),
[gen_server:reply(From, ok) || {From, _} <- Waiters],
gmhc_handler:pool_connected(S#st.id, S#st.opts),
S#st{awaiting_connect = []}.
cancel_reconnect_timer(#st{reconnect_timer = T} = S) ->
case T of
undefined -> S;
{TRef, _, _, _} ->
erlang:cancel_timer(TRef),
S#st{reconnect_timer = undefined}
end.
start_timer(T, Opts0) ->
Opts = retry_opts(Opts0),
erlang:start_timer(T, self(), {reconnect, Opts}).
retry_opts(Opts) ->
maps:with([deadline], Opts).
protocol_connect(Opts, #st{econn = EConn} = S) ->
Pubkey = to_bin(opt(pubkey, Opts, [<<"pubkey">>])),
Extra = [to_bin(X) || X <- opt(extra_pubkeys, Opts, [<<"extra_pubkeys">>])],
PoolId = to_bin(opt(pool_id, Opts, [<<"pool">>, <<"id">>])),
Type = to_atom(opt(type, Opts, [<<"type">>])),
RId = erlang:unique_integer(),
Vsns = gmhp_msgs:versions(),
Protocols = gmhp_msgs:protocols(hd(Vsns)),
ConnectReq = #{ protocols => Protocols
, versions => Vsns
, pool_id => PoolId
, pubkey => Pubkey
, extra_pubkeys => Extra
, type => Type
, nonces => gmhc_server:total_nonces()
, signature => ""},
?LOG_DEBUG("ConnectReq = ~p", [ConnectReq]),
Msg = gmhp_msgs:encode_connect(ConnectReq, RId),
enoise:send(EConn, Msg),
receive
{noise, EConn, Data} ->
case gmhp_msgs:decode_connect_ack(Data) of
#{reply := #{ id := RId
, result := #{connect_ack := #{ protocol := P
, version := V }}
}} ->
connected(S#st.id, Type),
Opts1 = Opts#{ pubkey => Pubkey
, extra => Extra
, pool_id => PoolId
, type => Type },
notify_connected(S#st{protocol = P, version = V, opts = Opts1});
#{error := #{message := Msg}} ->
?LOG_ERROR("Connect error: ~s", [Msg]),
error(protocol_connect)
end
after 10000 ->
error(protocol_connect_timeout)
end.
to_bin(A) when is_atom(A) ->
atom_to_binary(A, utf8);
to_bin(S) ->
iolist_to_binary(S).
to_atom(A) when is_atom(A) -> A;
to_atom(S) ->
binary_to_existing_atom(iolist_to_binary(S), utf8).
connected(Id, Type) when Type==miner; Type==monitor ->
gmhc_server:connected(Id, Type).
disconnected(Id) ->
gmhc_events:publish(disconnected, #{id => Id}),
gmhc_server:disconnected(Id).
opt_autoconnect(#{auto_connect := Bool}) when is_boolean(Bool) ->
Bool;
opt_autoconnect(#{id := Id}) ->
case Id of
1 ->
application:get_env(gmhive_client, auto_connect, true);
_ ->
true
end.
opt(OptsK, Opts, SchemaPath) ->
case maps:find(OptsK, Opts) of
error ->
gmhc_config:get_config(SchemaPath);
{ok, V} ->
V
end.

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-module(gmhc_connectors_sup).
-behavior(supervisor).
-export([ start_link/0
, init/1 ]).
-export([ start_first_connector/0
, start_connector/1]).
start_link() ->
supervisor:start_link({local, ?MODULE}, ?MODULE, []).
start_first_connector() ->
start_connector(#{}).
start_connector(Opts0) ->
Opts = case maps:is_key(id, Opts0) of
true -> Opts0;
false -> Opts0#{id => gmhc_counters:add_read(connector)}
end,
supervisor:start_child(?MODULE, [Opts]).
init([]) ->
Mod = gmhc_connector,
SupFlags = #{ strategy => simple_one_for_one
, intensity => 3
, period => 10 },
ChildSpecs = [ #{ id => Mod
, start => {Mod, start_link, []}
, type => worker
, restart => transient
, shutdown => 5000
, modules => [Mod] } ],
{ok, {SupFlags, ChildSpecs}}.

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-module(gmhc_counters).
-export([ initialize/0 ]).
-export([ add/1
, add/2
, add_read/1
, add_read/2
, get_value/1
, values/0 ]).
counters() ->
#{ connector => 1 }.
initialize() ->
Counters = counters(),
Size = map_size(Counters),
CRef = counters:new(Size, []),
put_counters(#{ref => CRef, counters => Counters}).
add(Counter) ->
add(Counter, 1).
add(Counter, Incr) when is_integer(Incr), Incr >= 0 ->
{CRef, Ix} = counter_ix(Counter),
counters:add(CRef, Ix, Incr).
add_read(Counter) ->
add_read(Counter, 1).
add_read(Counter, Incr) when is_integer(Incr), Incr >= 0 ->
{CRef, Ix} = counter_ix(Counter),
counters:add(CRef, Ix, Incr),
counters:get(CRef, Ix).
get_value(Counter) ->
{CRef, Ix} = counter_ix(Counter),
counters:get(CRef, Ix).
values() ->
#{ref := CRef, counters := Counters} = get_counters(),
maps:map(fun(_,Ix) -> counters:get(CRef, Ix) end, Counters).
counter_ix(Counter) ->
#{ref := CRef, counters := #{Counter := Ix}} = get_counters(),
{CRef, Ix}.
put_counters(C) ->
persistent_term:put(?MODULE, C).
get_counters() ->
persistent_term:get(?MODULE).

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-module(gmhc_eureka).
-export([get_pool_address/0]).
-include_lib("kernel/include/logger.hrl").
-include("gmhc_events.hrl").
get_pool_address() ->
URL0 = gmhc_config:get_config([<<"pool_admin">>, <<"url">>]),
case expand_url(URL0) of
<<"local">> ->
#{<<"address">> => <<"127.0.0.1">>,
<<"port">> => gmconfig:get_config([<<"pool">>, <<"port">>], [schema_default]),
<<"pool_id">> => gmhc_config:get_config([<<"pool">>, <<"id">>]) };
URL ->
?LOG_INFO("Trying to connect to ~p", [URL]),
connect1(URL)
end.
connect1(URL0) ->
URL = binary_to_list(URL0),
Res = request(get, URL),
?LOG_DEBUG("Res = ~p", [Res]),
case Res of
{ok, Body} ->
try get_host_port(json:decode(iolist_to_binary(Body)))
catch
error:_ ->
gmhc_events:publish(error, ?ERR_EVT(#{error => invalid_json,
data => Body})),
{error, invalid_json}
end;
{error, _} = Error ->
gmhc_events:publish(error, ?ERR_EVT(#{error => connect_failure,
data => Error})),
Error
end.
get_host_port(Data) ->
?LOG_DEBUG("Data = ~p", [Data]),
maps:with([<<"address">>, <<"port">>, <<"pool_id">>], Data).
request(get, URL) ->
case request(get, URL, []) of
{ok, #{body := Body}} ->
{ok, Body};
Other ->
%% TODO: perhaps return a more informative reason?
gmhc_events:publish(error, ?ERR_EVT(#{error => get_failed,
url => URL,
data => Other })),
{error, failed}
end.
request(get, URL, []) ->
Headers = [],
HttpOpts = [{timeout, 15000}],
Opts = [],
Profile = default,
request_result(httpc:request(get, {URL, Headers}, HttpOpts, Opts, Profile));
request(post, URL, Body) ->
post_request(URL, Body).
expand_url(URL) ->
case re:run(URL, <<"{[^}]+}">>, []) of
{match, _} ->
expand_vars(URL);
nomatch ->
URL
end.
expand_vars(S) ->
expand_vars(S, <<>>).
expand_vars(<<"{", Rest/binary>>, Acc) ->
{Var, Rest1} = get_var_name(Rest),
expand_vars(Rest1, <<Acc/binary, (expand_var(Var))/binary>>);
expand_vars(<<H, T/binary>>, Acc) ->
expand_vars(T, <<Acc/binary, H>>);
expand_vars(<<>>, Acc) ->
Acc.
expand_var(<<"CLIENT_ID">>) ->
gmhc_config:get_config([<<"pubkey">>]).
get_var_name(S) ->
get_var_name(S, <<>>).
get_var_name(<<"}", Rest/binary>>, Acc) ->
{Acc, Rest};
get_var_name(<<H, T/binary>>, Acc) ->
get_var_name(T, <<Acc/binary, H>>).
%% From hz.erl ==========================================================
% This is Bitcoin's variable-length unsigned integer encoding
% See: https://en.bitcoin.it/wiki/Protocol_documentation#Variable_length_integer
%% vencode(N) when N =< 0 ->
%% {error, {non_pos_N, N}};
%% vencode(N) when N < 16#FD ->
%% {ok, <<N>>};
%% vencode(N) when N =< 16#FFFF ->
%% NBytes = eu(N, 2),
%% {ok, <<16#FD, NBytes/binary>>};
%% vencode(N) when N =< 16#FFFF_FFFF ->
%% NBytes = eu(N, 4),
%% {ok, <<16#FE, NBytes/binary>>};
%% vencode(N) when N < (2 bsl 64) ->
%% NBytes = eu(N, 8),
%% {ok, <<16#FF, NBytes/binary>>}.
% eu = encode unsigned (little endian with a given byte width)
% means add zero bytes to the end as needed
%% eu(N, Size) ->
%% Bytes = binary:encode_unsigned(N, little),
%% NExtraZeros = Size - byte_size(Bytes),
%% ExtraZeros = << <<0>> || _ <- lists:seq(1, NExtraZeros) >>,
%% <<Bytes/binary, ExtraZeros/binary>>.
%% ======================================================================
%% From gmplugin_web_demo_handler.erl ===================================
post_request(URL, Map) ->
?LOG_DEBUG("Map = ~p", [Map]),
Body = json:encode(Map),
?LOG_DEBUG("Body = ~s", [Body]),
PostRes = httpc:request(post, {URL, [], "application/json", Body}, [], []),
request_result(PostRes).
%% ======================================================================
request_result(Result) ->
?LOG_DEBUG("Request result: ~p", [Result]),
request_result_(Result).
request_result_({ok, {{_, C200, Ok}, _Hdrs, Body}}) when C200 >= 200, C200 < 300 ->
{ok, #{code => C200, msg => Ok, body => Body}};
request_result_({ok, {{_, C200, Ok}, Body}}) when C200 >= 200, C200 < 300 ->
{ok, #{code => C200, msg => Ok, body => Body}};
request_result_({ok, {{_, Code, Error}, _Hdrs, Body}}) ->
{error, #{code => Code, msg => Error, body => Body}};
request_result_(_) ->
{error, #{code => 500, msg => <<"Internal error">>, body => <<>>}}.

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-module(gmhc_events).
-export([subscribe/1,
ensure_subscribed/1,
unsubscribe/1,
ensure_unsubscribed/1,
publish/2]).
-export([debug/0]).
-export_type([event/0]).
-type event() :: pool_notification
| {pool_notification, atom()}
| error
| connected
| disconnected.
-spec publish(event(), any()) -> ok.
publish(Event, Info) ->
Data = #{sender => self(),
time => os:timestamp(),
info => Info},
_ = gproc_ps:publish(l, Event, Data),
ok.
-spec subscribe(event()) -> true.
subscribe(Event) ->
gproc_ps:subscribe(l, Event).
-spec ensure_subscribed(event()) -> true.
%% @doc Subscribes to Event. Will not crash if called more than once.
ensure_subscribed(Event) ->
try subscribe(Event)
catch
error:badarg ->
%% This assertion should not be needed, since there is
%% no other scenario that would cause subscribe/1 to fail,
%% other than gproc not running (would also cause a badarg)
_ = gproc:get_value({p,l,{gproc_ps_event, Event}}, self()),
true
end.
-spec unsubscribe(event()) -> true.
unsubscribe(Event) ->
gproc_ps:unsubscribe(l, Event).
-spec ensure_unsubscribed(event()) -> true.
ensure_unsubscribed(Event) ->
case lists:member(self(), gproc_ps:list_subs(l,Event)) of
true ->
unsubscribe(Event);
false ->
true
end.
debug() ->
ok = application:ensure_started(gproc),
spawn(fun() ->
subscribe(pool_notification),
subscribe({pool_notification, new_generation}),
subscribe(connected),
subscribe(error),
subscribe(disconnected),
loop()
end).
loop() ->
receive
stop -> ok;
{gproc_ps_event, E, Data} ->
io:fwrite("EVENT ~p: ~p~n", [E, Data]),
loop()
end.

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-define(ERR_EVT(Info), #{module => ?MODULE, line => ?LINE, info => Info}).

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-module(gmhc_handler).
-behavior(gen_server).
-export([ start_link/0
, init/1
, handle_call/3
, handle_cast/2
, handle_info/2
, terminate/2
, code_change/3
]).
-export([ call/1
, notify/1
, pool_connected/2
, from_pool/1 ]).
-record(pool, { id :: gmhc_connector:id()
, pid :: pid() | 'undefined'
, mref :: reference()
, connected = false :: boolean()
, keep = true :: boolean()
, host :: string()
, port :: pos_integer()
, opts = #{} :: map() }).
-record(st, {pools = [], opts = #{}}).
-define(CALL_TIMEOUT, 5000).
-include_lib("kernel/include/logger.hrl").
call(Req) ->
try gen_server:call(?MODULE, {call, Req}, ?CALL_TIMEOUT)
catch
exit:Reason ->
{error, Reason}
end.
notify(Msg) ->
gen_server:cast(?MODULE, {notify, Msg}).
pool_connected(Id, Opts) ->
gen_server:cast(?MODULE, {pool_connected, Id, self(), Opts}).
from_pool(Msg) ->
ToSend = {from_pool, Msg},
?MODULE ! ToSend.
start_link() ->
gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
init([]) ->
{ok, #st{}}.
handle_call({call, Req}, _From, #st{} = S) ->
{reply, call_connector(Req), S};
handle_call(_Req, _From, S) ->
{reply, {error, unknown_method}, S}.
handle_cast({pool_connected, Id, Pid, Opts}, #st{pools = Pools} = S) ->
MRef = erlang:monitor(process, Pid),
case lists:keyfind(Id, #pool.id, Pools) of
#pool{} = P ->
P1 = P#pool{ connected = true
, pid = Pid
, mref = MRef },
Pools1 = lists:keyreplace(Id, #pool.id, Pools, P1),
{noreply, S#st{pools = Pools1}};
false ->
P = #pool{ id = Id
, pid = Pid
, mref = MRef
, host = maps:get(host, Opts)
, port = maps:get(port, Opts)
, opts = Opts },
{noreply, S#st{pools = [P | Pools]}}
end;
handle_cast({notify, Msg}, #st{} = S) ->
notify_connector(Msg),
{noreply, S};
handle_cast(_Msg, S) ->
{noreply, S}.
handle_info({from_pool, Msg}, S) ->
maybe_publish(Msg),
case Msg of
#{notification := #{new_server := #{ host := _
, port := _
, keep := _ } = Server}} ->
{noreply, start_pool_connector(Server, S)};
_ ->
gmhc_server:from_pool(Msg),
{noreply, S}
end;
handle_info(Msg, S) ->
?LOG_DEBUG("Unknown msg: ~p", [Msg]),
{noreply, S}.
terminate(_Reason, _S) ->
ok.
code_change(_FromVsn, S, _Extra) ->
{ok, S}.
maybe_publish(#{notification := Msg} = N) ->
Info = maybe_via(N, #{msg => Msg}),
gmhc_events:publish(pool_notification, Info),
if map_size(Msg) == 1 ->
[Tag] = maps:keys(Msg),
gmhc_events:publish({pool_notification, Tag}, Info);
true ->
ok
end;
maybe_publish(_) ->
ok.
maybe_via(#{via := Via}, Info) ->
Info#{via => Via}.
call_connector(Req0) ->
{ViaId, Req} = maps:take(via, Req0),
case gmhc_connector:whereis_id(ViaId) of
undefined ->
{error, no_connection};
Pid when is_pid(Pid) ->
Id = erlang:unique_integer(),
MRef = erlang:monitor(process, Pid),
gmhc_connector:send(ViaId, #{call => Req#{ id => Id }}),
receive
{from_pool, #{reply := #{ id := Id, result := Result }}} ->
Result;
{from_pool, #{error := #{ id := Id } = Error}} ->
{error, maps:remove(id, Error)};
{'DOWN', MRef, _, _, _} ->
{error, no_connection}
after 5000 ->
{error, {timeout, process_info(self(), messages)}}
end
end.
notify_connector(Msg0) ->
{Via, Msg} = maps:take(via, Msg0),
gmhc_connector:send(Via, #{notification => #{msg => Msg}}).
start_pool_connector(#{ host := Host
, port := Port
, keep := Keep }, #st{pools = Pools, opts = Opts} = S) ->
case [P || #pool{host = H1, port = P1} = P <- Pools,
H1 == Host,
P1 == Port] of
[] ->
case gmhive_client:connect(Opts#{ host => Host
, port => Port
, nowait => true }) of
{ok, CId} ->
Pid = gmhc_connector:whereis_id(CId),
MRef = erlang:monitor(process, Pid),
P = #pool{ id = CId, host = Host, port = Port,
keep = Keep, pid = Pid, mref = MRef },
S#st{pools = [P | Pools]};
{error, _} = Error ->
?LOG_WARNING("Could not start connector to ~p:~p - ~p",
[Host, Port, Error]),
S
end;
[#pool{} = _P] ->
?LOG_DEBUG("Already have a pool entry for ~p:~p", [Host, Port]),
S
end.

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-module(gmhc_server).
-behaviour(gen_server).
-export([ connected/2
, disconnected/1
, from_pool/1
, new_candidate/1
]).
-export([ total_nonces/0 ]).
-export([
start_link/0
, init/1
, handle_call/3
, handle_cast/2
, handle_info/2
, terminate/2
, code_change/3
]).
-include_lib("kernel/include/logger.hrl").
-include("gmhc_events.hrl").
-record(worker, { config
, nonces = 0
, index
, pid
, mref
, cand
, nonce
, errors = 0}).
-type worker() :: #worker{}.
-type type() :: monitor | worker.
-record(st, {
connected = #{} :: #{non_neg_integer() => {pid(), type()}}
, working = false :: boolean()
, candidate :: map() | 'undefined'
, nonces = 1 :: pos_integer()
, workers = [] :: [worker()]
}).
-define(CONNECTED(S), map_size(S#st.connected) > 0).
-define(MAX_ERRORS, 5).
connected(Id, Type) ->
gen_server:call(?MODULE, {connected, Id, Type}).
disconnected(Id) ->
gen_server:cast(?MODULE, {disconnected, Id}).
from_pool(Msg) ->
ToSend = {from_pool, Msg},
%% ?LOG_DEBUG("Sending to server: ~p", [ToSend]),
gen_server:cast(?MODULE, ToSend).
new_candidate(Cand) ->
gen_server:cast(?MODULE, {new_candidate, Cand}).
total_nonces() ->
gen_server:call(?MODULE, total_nonces).
start_link() ->
gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
init([]) ->
WorkerConfigs = gmhc_workers:get_worker_configs(),
?LOG_DEBUG("WorkerConfigs = ~p", [WorkerConfigs]),
%% IdleWorkers = [#worker{executable = E} || E <- Instances],
{IdleWorkers,_} = lists:mapfoldl(
fun(C, N) ->
NNonces = calc_nonces(C),
{#worker{index = N, config = C, nonces = NNonces}, N+1}
end, 1, WorkerConfigs),
TotalNonces = lists:foldl(fun(#worker{nonces = N}, Acc) ->
N + Acc
end, 0, IdleWorkers),
process_flag(trap_exit, true),
{ok, #st{workers = IdleWorkers, nonces = TotalNonces}}.
handle_call(total_nonces, _From, #st{nonces = Nonces} = S) ->
{reply, Nonces, S};
handle_call({connected, Id, Type}, {Pid,_}, #st{connected = Conn} = S) ->
?LOG_DEBUG("connected: ~p, ~p", [Id, Type]),
erlang:monitor(process, Pid),
S1 = S#st{connected = Conn#{Id => {Pid, Type}}},
S2 = case Type of
monitor ->
stop_workers(S1#st.workers), % shouldn't be any running
S1#st{workers = [], working = false};
worker -> S1#st{working = true}
end,
{reply, ok, S2};
handle_call(_Req, _From, S) ->
{reply, unknown_call, S}.
handle_cast({from_pool, #{via := Connector,
notification :=
#{candidate := Cand0}}},
#st{workers = Workers} = S) ->
Cand = maps:put(via, Connector, decode_candidate_hash(Cand0)),
%% ?LOG_DEBUG("Got new candidate; will mine it: ~p", [Cand]),
%% For now, stop all workers, restart with new candidate
Workers1 = stop_workers(Workers),
{Workers2, Cand1} = assign_nonces(Workers1, Cand),
#st{candidate = Cand2} = S1 = maybe_request_nonces(S#st{candidate = Cand1}),
NewWorkers = [spawn_worker(W, Cand2) || W <- Workers2],
{noreply, S1#st{workers = NewWorkers}};
handle_cast({disconnected, Id}, #st{connected = Conn} = S) ->
?LOG_DEBUG("disconnected: ~p", [Id]),
Conn1 = maps:remove(Id, Conn),
S1 = if map_size(Conn1) == 0 ->
Ws = stop_workers(S#st.workers),
S#st{connected = Conn1, workers = Ws};
true -> S#st{connected = Conn1}
end,
{noreply, S1};
handle_cast(_Msg, S) ->
{noreply, S}.
handle_info({'DOWN', MRef, process, Pid, Reason}, #st{ workers = Workers
, connected = Connected
, working = Working} = S)
when ?CONNECTED(S), Working ->
%% ?LOG_DEBUG("DOWN from ~p: ~p", [Pid, Reason]),
case lists:keyfind(Pid, #worker.pid, Workers) of
#worker{mref = MRef} = W ->
S1 = handle_worker_result(Reason, W, S),
{noreply, S1};
false ->
Conn1 = maps:filter(fun(_, {P,_}) -> P =/= Pid end, Connected),
{noreply, S#st{connected = Conn1}}
end;
handle_info({'EXIT', Pid, Reason}, #st{ workers = Workers
, working = Working} = S)
when ?CONNECTED(S), Working ->
case lists:keyfind(Pid, #worker.pid, Workers) of
#worker{} = W ->
%% ?LOG_DEBUG("EXIT from worker ~p: ~p", [W#worker.index, Reason]),
gmhc_events:publish(error, ?ERR_EVT(#{error => worker_error,
data => Reason})),
Ws1 = incr_worker_error(W, Workers),
{noreply, S#st{workers = Ws1}};
false ->
%% ?LOG_DEBUG("EXIT apparently not from worker?? (~p)", [Pid]),
{noreply, S}
end;
handle_info(Msg, St) ->
?LOG_DEBUG("Unknown msg: ~p", [Msg]),
{noreply, St}.
terminate(_Reason, _St) ->
ok.
code_change(_FromVsn, S, _Extra) ->
{ok, S}.
report_solutions(Solutions, W, #st{} = S) when ?CONNECTED(S) ->
#{via := Via, seq := Seq} = W#worker.cand,
gmhc_handler:call(
#{via => Via,
solutions => #{ seq => Seq
, found => [#{ nonce => Nonce
, evidence => Evd }
|| {Nonce, Evd} <- Solutions] }}).
%% report_solution(Nonce, Solution, W, #st{connected = true}) ->
%% #{seq := Seq} = W#worker.cand,
%% gmhc_handler:call(#{solution => #{ seq => Seq
%% , nonce => Nonce
%% , evidence => Solution }}).
report_no_solution(Nonce, W, #st{} = S) when ?CONNECTED(S) ->
#{via := Via, seq := Seq} = W#worker.cand,
%% ?LOG_DEBUG("report no_solution Seq = ~p, Nonce = ~p", [Seq, Nonce]),
gmhc_handler:call(#{via => Via,
no_solution => #{ seq => Seq
, nonce => Nonce}}).
maybe_request_nonces(#st{ candidate = #{via := Via, seq := Seq, nonces := Nonces}
, nonces = N} = S) when ?CONNECTED(S) ->
case Nonces == [] of
true ->
%% ?LOG_DEBUG("Request more nonces, Seq = ~p, N = ~p", [Seq, N]),
Res = gmhc_handler:call(#{via => Via,
get_nonces => #{ seq => Seq
, n => N }}),
nonces_result(Res, Seq, S);
false ->
S
end;
maybe_request_nonces(S) ->
S.
nonces_result(#{nonces := #{seq := Seq, nonces := Nonces}}, Seq0, S) ->
case Seq == Seq0 of
true ->
%% ?LOG_DEBUG("Got nonces = ~p", [Nonces]),
#st{candidate = Cand} = S,
S#st{candidate = Cand#{nonces => Nonces}};
false ->
?LOG_DEBUG("Seq mismatch - wtf?? ~p - ~p", [Seq, Seq0]),
S
end;
nonces_result({error, #{message := <<"outdated">>}}, Seq0, S) ->
Workers = stop_workers_for_seq(Seq0, S#st.workers),
S#st{workers = Workers}.
handle_worker_result({worker_result, Result}, W, S) ->
%% ?LOG_DEBUG("worker result: ~p", [Result]),
case Result of
{solutions, Solutions} ->
{Cont, S1} = report_solutions_(Solutions, W, S),
maybe_continue(Cont, W, S1);
{solution, Nonce, Solution} ->
%% report_solution(Nonce, Solution, W, S),
{Cont, S1} = report_solutions_([{Nonce, Solution}], W, S),
maybe_continue(Cont, W, S1);
{no_solution, Nonce} ->
report_no_solution(Nonce, W, S),
maybe_restart_worker(W, S);
{error, S} ->
?LOG_DEBUG("Worker ~p reported error as normal", [W#worker.index]),
gmhc_events:publish(error, ?ERR_EVT(#{error => worker_error,
data => Result})),
Ws = incr_worker_error(W, S#st.workers),
S#st{workers = Ws}
end;
handle_worker_result(Error, W, S) ->
?LOG_DEBUG("Got worker error from ~p: ~p", [W#worker.index, Error]),
gmhc_events:publish(error, ?ERR_EVT(#{error => worker_error,
data => Error})),
Ws = incr_worker_error(W, S#st.workers),
S#st{workers = Ws}.
report_solutions_(Solutions, W, S) ->
case report_solutions(Solutions, W, S) of
ok ->
Ws = reset_worker(W, S#st.workers),
Ws1 = stop_workers(Ws),
{stopped, S#st{workers = Ws1}};
continue ->
{continue, S};
{error, _} ->
{error, S}
end.
reset_worker(#worker{index = I} = W, Ws) ->
W1 = reset_worker_(W),
lists:keyreplace(I, #worker.index, Ws, W1).
reset_worker_(W) ->
%% ?LOG_DEBUG("reset_worker ~p", [W#worker.index]),
W#worker{pid = undefined, mref = undefined,
nonce = undefined, cand = undefined}.
incr_worker_error(#worker{errors = Es, index = I} = W, Ws) ->
%% ?LOG_DEBUG("Increment worker (~p) error count: ~p", [I, Es+1]),
W1 = reset_worker_(W#worker{errors = Es+1}),
lists:keyreplace(I, #worker.index, Ws, W1).
maybe_continue(stopped, _, S) ->
S;
maybe_continue(continue, W, S) ->
maybe_restart_worker(W, S);
maybe_continue(error, W, S) ->
?LOG_INFO("Won't restart worker ~p due to error", [W#worker.index]),
S.
maybe_restart_worker(#worker{index = I} = W, #st{candidate = C} = S) ->
case maps:get(nonces, C) of
[] ->
%% Waiting for nonces
Ws = reset_worker(W, S#st.workers),
S#st{workers = Ws};
Ns ->
{Nonce, Ns1} = pick_nonce(W#worker.nonces, Ns),
%% ?LOG_DEBUG("restart worker ~p with nonce ~p", [I, Nonce]),
W1 = reset_worker_(W),
W2 = spawn_worker(W1#worker{nonce = Nonce}, C),
Ws = lists:keyreplace(I, #worker.index, S#st.workers, W2),
S1 = S#st{candidate = C#{nonces => Ns1}, workers = Ws},
maybe_request_nonces(S1)
end.
%% In a Gajumaru node, a typical worker config might look like this:
%% "cuckoo": {
%% "edge_bits": 29,
%% "miners": [{"executable": "mean29-avx2"},
%% {"executable": "lean29-avx2"},
%% {"executable": "lean29-avx2"},
%% {"executable": "lean29-avx2"}]
%% }
stop_workers(Workers) ->
[stop_worker(W) || W <- Workers].
stop_workers_for_seq(Seq, Workers) ->
[stop_worker(W) || #worker{cand = #{seq := Seq1}} = W <- Workers,
Seq1 =:= Seq].
stop_worker(#worker{pid = Pid, mref = MRef} = W) when is_pid(Pid) ->
exit(Pid, kill),
receive
{'EXIT', Pid, _} -> ok;
{'DOWN', MRef, process, Pid, _} -> ok
end,
W#worker{pid = undefined, mref = undefined, nonce = undefined};
stop_worker(W) ->
W.
assign_nonces(Ws, #{nonces := Ns} = C) ->
{Ws1, Nonces1} = assign_nonces_(Ws, Ns, []),
{Ws1, C#{nonces => Nonces1}}.
assign_nonces_([W | Ws], [], Acc) ->
assign_nonces_(Ws, [], [W#worker{nonce = undefined}|Acc]);
assign_nonces_([#worker{nonces = N} = W | Ws], Ns, Acc) ->
{Nonce, Ns1} = pick_nonce(N, Ns),
assign_nonces_(Ws, Ns1, [W#worker{nonce = Nonce}|Acc]);
assign_nonces_([], Ns, Acc) ->
{lists:reverse(Acc), Ns}.
-spec calc_nonces(gmhw_pow_cuckoo:config()) -> non_neg_integer().
calc_nonces(Cfg) ->
NInstances = case gmhw_pow_cuckoo:addressed_instances(Cfg) of
undefined -> 1;
L -> length(L)
end,
Repeats = gmhw_pow_cuckoo:repeats(Cfg),
Repeats * NInstances.
pick_nonce(_, [A, A]) ->
%% ?LOG_DEBUG("last nonce (~p)", [A]),
{A, []};
pick_nonce(N, [A, B]) when A < B ->
A1 = A + N,
New = if A1 > B -> [];
true -> [A1, B]
end,
%% ?LOG_DEBUG("Remanining nonces: ~p", [New]),
{A, New}.
%% Dialyzer doesn't like that the fun passed to spawn_link/1
%% doesn't have a local return (it communicates its result via the exit reason).
-dialyzer({no_return, spawn_worker/2}).
spawn_worker(#worker{nonce = undefined} = W, _) ->
W;
spawn_worker(#worker{errors = Es} = W, _) when Es >= ?MAX_ERRORS ->
?LOG_DEBUG("Won't start worker - reached max error count: ~p", [W]),
W;
spawn_worker(#worker{pid = undefined, nonce = Nonce, config = Cfg} = W, Cand) ->
Me = self(),
#{candidate := Data, target := Target, edge_bits := EdgeBits} = Cand,
Pid = spawn_link(
fun() ->
Cfg1 = gmhw_pow_cuckoo:set_edge_bits(EdgeBits, Cfg),
init_worker(Data, Nonce, Target, Cfg1, Me)
end),
MRef = erlang:monitor(process, Pid),
W#worker{pid = Pid, mref = MRef, cand = Cand, nonce = Nonce}.
-spec init_worker(binary(), integer(), integer(), tuple(), pid()) -> no_return().
init_worker(Data, Nonce, Target, Config, Parent) ->
Res = gmhc_workers:generate_from_hash(Data, Target, Nonce, Config, undefined),
%% ?LOG_DEBUG("worker result: ~p", [Res]),
case Res of
{ok, Solutions} when is_list(Solutions) ->
worker_result(Parent, {solutions, Solutions});
%% {ok, {Nonce1, Solution}} ->
%% worker_result(Parent, {solution, Nonce1, Solution});
{error, no_solution} ->
%% TODO: If we are using repeats, then we might report
%% no_solution for each nonce tried.
worker_result(Parent, {no_solution, Nonce});
{error, Other} ->
?LOG_ERROR("Bad worker! {error, ~p}", [Other]),
gmhc_events:publish(error, ?ERR_EVT(#{error => cannot_start_worker,
data => {error, Other}})),
exit(Other)
end.
worker_result(Pid, Result) ->
unlink(Pid),
exit({worker_result, Result}).
decode_candidate_hash(#{candidate := C} = Cand) ->
{ok, Hash} = gmser_api_encoder:safe_decode(bytearray, C),
Cand#{candidate := Hash}.

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%% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
-module(gmhc_sup).
-behaviour(supervisor).
%% API
-export([start_link/0]).
%% Supervisor callbacks
-export([init/1]).
start_link() ->
supervisor:start_link({local, ?MODULE}, ?MODULE, []).
init([]) ->
ChildSpecs = [ worker(gmhc_server)
, worker(gmhc_handler)
, supervisor(gmhc_connectors_sup) ],
SupFlags = #{ strategy => one_for_one
, intensity => 1
, period => 5
, auto_shutdown => never },
{ok, {SupFlags, ChildSpecs}}.
worker (Mod) -> child(Mod, worker).
supervisor(Mod) -> child(Mod, supervisor).
child(Mod, Type) ->
#{ id => Mod
, type => Type
, start => {Mod, start_link, []}
, restart => permanent
, shutdown => 5000
, significant => false
, modules => [Mod] }.

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%%%-------------------------------------------------------------------
%%% @copyright (C) 2025, QPQ AG
%%% @copyright (C) 2017, Aeternity Anstalt
%%%
%%% @doc Hive worker configuration logic, based on aec_mining.erl
%%% in the Gajumaru platform (https://git.qpq.swiss/QPQ-AG/gajumaru)
%%% @end
%%%-------------------------------------------------------------------
-module(gmhc_workers).
-export([
get_worker_configs/0
, generate_from_hash/5
]).
-include_lib("kernel/include/logger.hrl").
-define(DEFAULT_EXECUTABLE_GROUP , <<"gajumine">>).
-define(DEFAULT_EXTRA_ARGS , <<>>).
-define(DEFAULT_HEX_ENCODED_HEADER , false).
-define(DEFAULT_REPEATS , 1).
-define(DEFAULT_EDGE_BITS , 29).
%%------------------------------------------------------------------------------
%% Read and parse worker configs.
%%
%% Workers defined in gajumaru.{json,yaml} user config file take precedence.
%% If there are no workers defined in the user config, sys.config cuckoo
%% workers are read. If there are neither user config nor sys.config workers
%% ?DEFAULT_CUCKOO_ENV is used as the last resort option (i.e. mean29-generic
%% without any extra args).
%%------------------------------------------------------------------------------
-spec get_worker_configs() -> [gmhw_pow_cuckoo:config()].
get_worker_configs() ->
ConfigMaps = worker_config_map(),
?LOG_DEBUG("ConfigMaps = ~p", [ConfigMaps]),
lists:foldl(
fun(Cfg, Configs) ->
[build_worker_config(Cfg) | Configs]
end, [], ConfigMaps).
-spec generate_from_hash(gmhw_pow_cuckoo:hash(), gmhw_pow:sci_target(),
gmhw_pow:nonce(), gmhw_pow_cuckoo:config(),
gmhw_pow:instance() | undefined) ->
{ok, [{gmhw_pow:nonce(), gmhw_pow_cuckoo:solution()}]} | {error, term()}.
generate_from_hash(Hash, Target, Nonce, Config, WorkerInstance) ->
gmhw_pow_cuckoo:generate_from_hash(Hash, Target, Nonce, Config, WorkerInstance, true).
%% Internal functions.
%%------------------------------------------------------------------------------
%% Config handling
%%------------------------------------------------------------------------------
build_worker_config(Config) when is_map(Config) ->
Exec = maps:get(<<"executable">>, Config),
ExecGroup = maps:get(<<"executable_group">>, Config, ?DEFAULT_EXECUTABLE_GROUP),
ExtraArgs = maps:get(<<"extra_args">>, Config, ?DEFAULT_EXTRA_ARGS),
HexEncHdr = maps:get(<<"hex_encoded_header">>, Config,
hex_encoding_default(ExecGroup, Exec)),
Repeats = maps:get(<<"repeats">>, Config, ?DEFAULT_REPEATS),
Instances = maps:get(<<"addressed_instances">>, Config, undefined),
EdgeBits = ?DEFAULT_EDGE_BITS,
gmhw_pow_cuckoo:config(Exec, ExecGroup, ExtraArgs, HexEncHdr, Repeats, EdgeBits, Instances);
build_worker_config({Exec, ExtraArgs, HexEncHdr, Repeats, Instances, ExecGroup}) ->
EdgeBits = ?DEFAULT_EDGE_BITS,
gmhw_pow_cuckoo:config(Exec, ExecGroup, ExtraArgs, HexEncHdr, Repeats, EdgeBits, Instances).
worker_config_map() ->
gmhc_config:get_config([<<"workers">>]).
hex_encoding_default(_, <<"cuda29">>) -> true;
hex_encoding_default(_, _) -> ?DEFAULT_HEX_ENCODED_HEADER.

26
src/gmhive_client.app.src Normal file
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@ -0,0 +1,26 @@
%% -*- mode: erlang; erlang-indent-level: 4; indent-tabs-mode: nil -*-
{application, gmhive_client,
[{description, "Gajumaru Hive Client"},
{vsn, "0.1.0"},
{registered, []},
{applications,
[
kernel
, stdlib
, sasl
, gproc
, inets
, ssl
, enoise
, gmconfig
, gmhive_protocol
, gmhive_worker
]},
{mod, {gmhc_app, []}},
{start_phases, [ {connect_to_primary, []} ]},
{env, []},
{modules, []},
{maintainers, ["QPQ IaaS AG"]},
{licensens, ["ISC"]},
{links, [{"gitea", "https://git.qpq.swiss/gmhive_client"}]}
]}.

36
src/gmhive_client.erl Normal file
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-module(gmhive_client).
-export([ connect/1
, disconnect/1
, status/0
, status/1 ]).
-type connect_opts() :: gmhc_connector:connect_opts().
-type id() :: non_neg_integer().
-type status() :: connected | disconnected.
-export_type([ connect_opts/0 ]).
-spec connect(connect_opts()) -> {ok, id()} | {error, any()}.
connect(Opts) when is_map(Opts) ->
Id = gmhc_counters:add_read(connector),
case gmhc_connectors_sup:start_connector(Opts#{id => Id}) of
{ok, _Pid} ->
{ok, Id};
{error, _} = Error ->
Error
end.
%% gmhc_connector:connect(Opts).
-spec disconnect(id()) -> ok.
disconnect(Id) ->
gmhc_connector:disconnect(Id).
-spec status() -> [{id(), status()}].
status() ->
gmhc_connector:status().
-spec status(id()) -> status().
status(Id) ->
gmhc_connector:status(Id).

4
zomp.ignore Normal file
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_build
_checkouts
*config.eterm
rebar.*

17
zomp.meta Normal file
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{name,"gmhive_client"}.
{type,app}.
{modules,[]}.
{prefix,"gmhc"}.
{author,"Ulf Wiger, QPQ AG"}.
{desc,"Gajumaru Hive Client"}.
{package_id,{"uwiger","gmhive_client",{0,1,0}}}.
{deps,[]}.
{key_name,none}.
{a_email,"ulf@wiger.net"}.
{c_email,"ulf@wiger.net"}.
{copyright,"Ulf Wiger, QPQ AG"}.
{file_exts,[]}.
{license,"LGPL-3.0-or-later"}.
{repo_url,"https://git.qpq.swiss/QPQ-AG/gmhive_client"}.
{tags,[]}.
{ws_url,[]}.

42
zompify.sh Executable file
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#!/bin/sh
set -e
APP=$(basename "$PWD")
SRC="_build/default/lib/$APP"
DST="$PWD/_build/zomp/lib/$APP"
IGNORE_FILE="zomp.ignore"
mkdir -p "$DST"
# Remove broken symlinks
find "$SRC" -type l ! -exec test -e {} \; -delete || true
# Build ignore matcher
IGNORE_TEMP=$(mktemp)
trap "rm -f $IGNORE_TEMP" EXIT
# Expand globs in zomp.ignore to patterns suitable for grep
if [ -e "$IGNORE_FILE" ]; then
grep -v '^\s*#' "$IGNORE_FILE" | sed 's#/#\\/#g' | sed 's/\./\\./g' | sed 's/\*/.*/g' > "$IGNORE_TEMP"
fi
# Copy Git-tracked and Zomp-allowed files
git ls-files -z | while IFS= read -r -d '' file; do
# Skip if ignored
echo "$file" | grep -Eq -f "$IGNORE_TEMP" && continue
# Only copy if file exists in the build dir
if [ -e "$SRC/$file" ]; then
mkdir -p "$DST/$(dirname "$file")"
cp -a "$SRC/$file" "$DST/$file"
fi
done
rm "$IGNORE_TEMP"
# Copy metadata
cp "$PWD/zomp.meta" "$DST/"
cp "$PWD/Emakefile" "$DST/"
# Clean up beam files just in case
[ -d "$DST/ebin" ] && find "$DST/ebin" -name '*.beam' -exec rm -f {} + || true